Mayki- "alcoholic" or tops with American armholes, out of which protrude bra straps. Often these things put under more and silicone straps: it looks equally bad. Remember: Bra straps should not be seen, even if this goes half the city.
Blunder - white panties under white pants. Under the white clothing should be selected only flesh-colored underwear, also better to give preference seamless panties.